空气质量小常识
- 1、口罩小知识
-
常见的PM2.5口罩有N90,N95,N99等类型,其中数字90代表过滤效果在90%以上,95代表过滤效果在95%以上。过渡效果越好,相对呼吸也越困难,一般选择N90系列的口罩就足够了。
- 2、PM2.5和PM10的区别
- PM2.5指空气中直径≤2.5微米的颗粒物,可入肺。吸入过多易引发哮喘、支气管炎和心血管病等疾病。
PM10指空气中直径≤10微米的颗粒物,可入上呼吸道,但可排出体外,对人体危害相对较小。
- 3、雾霾是什么?
-
雾霾天气是一种大气污染状态,包含各种含量超标的悬浮颗粒物。雾是液态水珠,霾是固体,包括空气中的灰尘、硫酸、硝酸、可吸入颗粒物等粒子,会使能见度降低。两者结合在一起就是雾霾。
基本
文件
流程
错误
SQL
调试
- 请求信息 : 2026-03-14 14:50:16 HTTP/2.0 GET : https://m.tianqibao.com/aqi/tlyqnz.html
- 运行时间 : 0.076735s [ 吞吐率:13.03req/s ] 内存消耗:6,627.77kb 文件加载:241
- 查询信息 : 21 queries
- 缓存信息 : 17 reads,6 writes
- 会话信息 : SESSION_ID=4f32d2846f212bc71d79020084120926
- CONNECT:[ UseTime:0.001010s ] mysql:host=127.0.0.1;port=3306;dbname=tianqibao;charset=utf8mb4
- SHOW FULL COLUMNS FROM `sa_config` [ RunTime:0.004313s ]
- SHOW FULL COLUMNS FROM `sa_area` [ RunTime:0.000540s ]
- SELECT * FROM `sa_area` WHERE `is_hot` = 1 ORDER BY `update_time` DESC LIMIT 12 [ RunTime:0.003559s ]
- SELECT * FROM `sa_area` WHERE `level` = 1 [ RunTime:0.000434s ]
- SELECT * FROM `sa_area` WHERE `pinyin` = 'tlyqnz' LIMIT 1 [ RunTime:0.001636s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 3841 LIMIT 1 [ RunTime:0.000309s ]
- SELECT * FROM `sa_area` WHERE `pid` = 183 AND `scenic_spots` = 0 LIMIT 15 [ RunTime:0.002795s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1643 LIMIT 1 [ RunTime:0.000288s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1644 LIMIT 1 [ RunTime:0.000560s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1645 LIMIT 1 [ RunTime:0.000305s ]
- SELECT COUNT(*) AS think_count FROM `sa_area` WHERE `pid` = 1646 LIMIT 1 [ RunTime:0.000255s ]
- SHOW FULL COLUMNS FROM `sa_area_weather` [ RunTime:0.000669s ]
- SELECT * FROM `sa_area_weather` WHERE `pid` = 3841 LIMIT 1 [ RunTime:0.003768s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 LIMIT 1 [ RunTime:0.004990s ]
- SELECT COUNT(*) AS think_count FROM `sa_area_weather` WHERE `rank` = 1 AND `aqi` > 70 LIMIT 1 [ RunTime:0.008539s ]
- SELECT * FROM `sa_area` WHERE `id` IN (324,325,312,327,318,311,297,528,524,523) [ RunTime:0.000400s ]
- SELECT * FROM `sa_area` WHERE `id` IN (95,130,134,136,470,475,477,127,443,462) [ RunTime:0.000418s ]
- SELECT * FROM `sa_area` WHERE `id` IN (410,418,358,396,359,363,366,342,408,95) [ RunTime:0.000442s ]
- SELECT * FROM `sa_area` WHERE `id` IN (467,466,465,464,459,476,463,228,226,213) [ RunTime:0.000668s ]
- SHOW FULL COLUMNS FROM `sa_cms_pages` [ RunTime:0.000585s ]
- SELECT * FROM `sa_cms_pages` WHERE `status` = 1 ORDER BY `id` ASC LIMIT 6 [ RunTime:0.000315s ]

0.082966s